ReferenceError: Can't find variable: gtag

https://sentry.io/hitta-skyddsrum/webclient/issues/818935544/?referrer=github_plugin

```
ReferenceError: Can't find variable: gtag
  at apply (./history.js:6:3)
  at forEach ([native code])
  at componentWillMount (./containers/redirect/index.js:6:5)
  at init (./index.js:9:10)
  at afterFill (./index.js:31:5)
...
(32 additional frame(s) were not displayed)
```